As Will Grigg was swept up into his team-mates’ arms, and the first fans poured on to the pitch with the mood still buoyant, Pep Guardiola looked disconsolate for someone who had just been proved right.

The Manchester City head coach always argued that the quadruple was unrealistic. It was just that he would not have expected the bandwagon to be derailed here against League One opposition in Wigan Athletic, who were left celebrating another glorious excerpt in their recent history against these same exalted rivals.

A thrilling FA Cup tie was played out against a backdrop of rancour and recrimination; the ugly scenes at half-time, when Guardiola clashed with his counterpart Paul Cook in the aftermath of Fabian Delph’s reckless red card, then growing…

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